Almost there...where does the argument list go

lycis

Usually the arguments are passed to your application through various layers of your operation system. How do you access them in your software? What happens if you do something like that:

@
int main(int argc, char** argv)
{
qDebug() << argv[1] << endl; // might crash if there's no command line argument...
...
}
@

mlong

[Edit: this doesn't really apply to the problem. See below.]

Shouldn't crash:

@
#include <QDebug>

int main(int argc, char** argv)
{
qDebug() << "Application name: " << argv[0];
if (argc) {
for (int idx = 1; idx < argc; idx++)
qDebug() << "Arg" << idx << "is" << argv[idx];
} else {
qDebug() << "No arguments given.";
}
return 0;
}
@
// Brain to terminal. YMMV

cloudbuster

normally I execute the program using

./QtFigs4 figs.xml

...OR...
./QtFigs4 /home/qt4user/QtFigs4/figs.xml

I just installed Qt sdk and to get going I opened

the program by pointing to QtFigs4.pro

Only problem now is the argument..a file name figs.xml

Almost all SDKs allow entry of command line argument(s)

mlong

Ah.... misunderstood your question, I think!

In Creator, go to the "Projects" icon on the left-hand panel, select "Run Settings" from the toolbar at the top of the screen. Then fill in the "Arguments:" field.

cloudbuster

thanks! but projects yields topics
targets
editor settings
code style settings
dependencies

I looked around for arguments but found nado

mlong

Ok, under Targets, there will be one or more platform descriptions (Desktop, Qt Simulator, Symbian Device, etc.) Each of those will have a (Build | Run) button group. Select "Run" on the platform you're interested in.

(See "here":http://doc.qt.nokia.com/qtcreator-2.4/images/qtcreator-projectpane.png for illustration.)

Description of run settings are "here.":http://doc.qt.nokia.com/qtcreator-2.4/creator-run-settings.html

cloudbuster

thanks! It works except for a nasty little messagebox that says:

"debugger settings point to a script file
/home/qt4user/QtFigs4/figs.xml

which is not accessible!

I even did a chmod 777 on it just to try to remove the #$%^ message

I'll have to track that down!"

cloudbuster

got rid of the nasty message box...things runs now

THANKS!

Next I'll try an eclipse project I know works.

It is a great little lottery program with a histogram of

value occurences . WOW it works and I don't have to open another window

for the ui

cloudbuster

EEEHA! two of my eclipse projects with UI are working.

Saw the build/run thing...but

but...nothing happened when I selected either build or run

The message box was not a crash exactly but a complaint!

Eclipse wasted a lot of my time. Qt advice says NOT to use the eclipse

that comes with various distros.

I love QT SDK

cloudbuster

Qt examples are usually overly complex.

The 3 examples I've just got running are superb mentoring examples.

In MHO

I can email to anybody!

Qt should be avail to get/update under Fedora yum

as easy as

yum install qtsdk